EP0474884A1 - Tissu de base pour ruban-encreur et production d'un tel tissu - Google Patents

Tissu de base pour ruban-encreur et production d'un tel tissu Download PDF

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Publication number
EP0474884A1
EP0474884A1 EP91906428A EP91906428A EP0474884A1 EP 0474884 A1 EP0474884 A1 EP 0474884A1 EP 91906428 A EP91906428 A EP 91906428A EP 91906428 A EP91906428 A EP 91906428A EP 0474884 A1 EP0474884 A1 EP 0474884A1
Authority
EP
European Patent Office
Prior art keywords
fabric
inked ribbon
warp
high pressure
set forth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91906428A
Other languages
German (de)
English (en)
Other versions
EP0474884A4 (en
EP0474884B1 (fr
Inventor
Nobutake Hiroe
Toshiaki Kadota
Tsuyoshi Hatakeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of EP0474884A1 publication Critical patent/EP0474884A1/fr
Publication of EP0474884A4 publication Critical patent/EP0474884A4/en
Application granted granted Critical
Publication of EP0474884B1 publication Critical patent/EP0474884B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J31/00—Ink ribbons; Renovating or testing ink ribbons
    • B41J31/02—Ink ribbons characterised by the material from which they are woven
    • B41J31/04—Ink ribbons characterised by the material from which they are woven woven from synthetic material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C29/00—Finishing or dressing, of textile fabrics, not provided for in the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J31/00—Ink ribbons; Renovating or testing ink ribbons
    • B41J31/02—Ink ribbons characterised by the material from which they are woven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]

Definitions

  • This invention relates to a method of manufacturing a fabric for the inked ribbon used in the printers such as impact type serial dot and line printers.
  • the inked ribbon used in the impact type printers the conventional spool type is decreasing, and the cassette type having the inked ribbon in the form of a long tape folded and housed in a cassette has become the main.
  • the inked ribbon of the cassette type had a shortcoming to produce print spots, or hot spots as generally called, at the folded parts of the ribbon.
  • a cloth composed of warps having a twist of 100 T/m or more and wefts of a twist of 0 to 300 T/m has been used. That is, to reduce the processing cost, the so-called non-twisting is being realized with the twisting process omitted for the wefts and the original twist of 30 T/m or less of the material yarn utilized for weaving. But, here, if such non-twisting is applied to the warps, the hot spots are generally produced, and so the inked ribbon is applicable only to limited uses such as spool type having hot spots scarcely produced.
  • Patent Publication No. SHO 61-24487 it is described to disturb the fiber orientation of the cloth for inked ribbon with a high pressure water stream in order to dissolve the reel marks and improve the absorption of ink, but nothing is described of the method of dissolving the hot spots with the twist of the warp reduced.
  • the fabric for inked ribbon of the present invention has the following composition.
  • the fabric for inked ribbon according to the present invention is composed of a cloth having multifilaments of a twist of 30 T/m or less used for the warp, and it is characterized in that the fiber orientation in said multifilament is disturbed through high pressure liquid treatment.
  • the method of manufacturing the fabric for inked ribbon according to the present invention is characterized by treating a cloth composed of warps of multifilaments of a twist of 30 T/m or less with a flow of high pressure liquid.
  • Fig. 1 shows the standard for evaluation of hot spots. That is the conditions of hot spots of various ranks of ribbons in solid printing.
  • a fabric for inked ribbon scarcely producing hot spots by treating a cloth composed of multifilaments of a low twist of warps with a high pressure liquid.
  • the fabric for inked ribbon of the present invention has the orientation of fibers in the filaments disturbed by the high pressure liquid treatment and thus has the voids in the fabric increased, and so it is distinguished in absorption of ink.
  • the effect of improving the hot spots is readily obtainable, and the ink absorption is increased.
  • the fabric shrinks more or less, and here by taking such shrinkage into account and weaving to a rather low fiber density, it is possible to provide a product of a desired fiber density and thickness.
  • the material for the multifilament under the present invention there may be listed the polyamide fiber, polyester fiber, polyacryl fiber and polyvinyl fiber. But, form the durability of the fabric, the polyamide fiber and polyester fiber are preferable, and nylon 66 and nylon 6 are particularly preferable.
  • the fabric constituting the inked ribbon is composed of a cloth having the foregoing fiber used for the warp as well as weft.
  • the total denier of these yarns is preferably 20 to 100D or, more preferably, 40 to 70D, and the single yarn denier of the fiber constituting the yarn is preferably 1d to 3d.
  • the textile density of the fabric is preferably 150 to 220 yarns/in. for the warp and 100 to 140 yarns/in. for the weft but is not limited thereto.
  • plain weave For the texture of the fabric, plain weave, derivative plain weave, twill and saten are preferably used but are not limited thereto.
  • the inventors examined the contribution of the warp and found that the warp would contribute to increasing the ink absorption but not so much as the weft for improvement of the hot spots.
  • the high pressure liquid treatment under the present invention refers to a method of spouting a liquid through a small hole under a high pressure to have it hit the fabric.
  • the liquid may contain an additive such as solid particles, an organic solvent or a surface active agent.
  • the diameter of the nozzle spouting water is preferably 0.1 to 0.4 mm or, more preferably, 0.2 to 0.35 mm.
  • the fabric treatment speed is preferably 5 to 100 m/min or, more preferably, 20 to 80 m/min.
  • the high pressure liquid treatment may be made in any of the scouring, drying and heat setting processes of the fabric but is efficiently made after scouring.
  • the fabric thus obtained has hot spots scarcely produced, equally to, or much more than, the conventional fabric composed of yarns of a twist of about 100 to 300 T/m through additional twisting and is thus distinguished as a fabric for inked ribbon.
  • An inked ribbon (10 m long) prepared as above is set in a cassette for 9-pin dot printer (product of Tokyo Denki, model M-1550), and the cassette is set on the printer for solid printing, and any hot spots are observed with naked eye.
  • the standard of evaluation is shown in Fig. 1, viz.
  • the fabric to be tested is melt cut into a size of 10 cm x 10 cm to form a test specimen, then its weight (A) is measured.
  • the test specimen is soaked in an oil ink, and defoaming by vacuuming, the ink is well permeated into the test specimen.
  • the test specimen is held between filter papers to remove excessive ink through a mangle. Then, changing the filter papers, the test specimen is allowed to pass through the mangle twice to completely remove the excessive ink, and the weight (B) of the ink containing ribbon is measured.
  • Two kinds of yarns were prepared: a 40 denier/34 filament yarn of an original twist of 13 T/m, and a yarn having an additional twist of 273 T/m made to the first yarn to a total twist of 283 T/m together with the original twist of 13 T/m.
  • plain fabrics were woven in a water jet room, and they were scoured and dried according to the conventional method. Thereafter, Examples 1 through 5 had the high pressure water jet treatments shown in Table 1 rendered and, after drying, finish setting made. References 1 and 2 were directly subjected to finish setting without high pressure water flow treatment.
  • Example 5 had the hot spot greatly improved and were good in ink absorption, provided Example 5 had the texture slightly deviated, as compared with the others, probably on account of the higher water pressure.
  • Reference 1 is of the same fabric design to the inked ribbons generally used for the 9-pin dot printer, but the hot spot is of ⁇ level.
  • Reference 2 is worse than Reference 1 in the level of hot spot.
  • Examples 6 through 10 had the high pressure water jet treatments shown in Table 2 and, after drying, finish setting given respectively.
  • References 3 and 4 were directly subjected to finish setting without high pressure water jet treatment.
  • Reference 3 is of the same fabric design to the inked ribbons generally used for the 24-pin dot printer, but the hot spot is of X level.
  • Reference 4 is a fabric for inked ribbon comprising warps of multifilament yarns of a twist of 30 T/m or less and has no high pressure water jet treatment rendered. It will be seen that the level of the hot spot is worse than that of Reference 3.
  • the inked ribbon comprised of the fabric of the present invention is very suitable and advantageous for the printers using the cassette type ribbon which is the main of the form of the inked ribbon in recent years. It scarcely produces hot spots and is distinguished in ink absorption. Furthermore, it uses the warp of a very low twist of 30 T/m or less and is thus economically produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Abstract

L'invention se rapporte à un tissu de base pour ruban-encreur, qui se compose d'un tissu tissé dans lequel un multifilament ayant un nombre de torsions de 30 T/m au maximum est utilisé comme chaîne et dans lequel l'alignement des fibres dans la chaîne est réparti à la suite d'un traitement par fluide sous haute pression. Un tel ruban peut être utilisé dans diverses imprimantes, telles que les imprimantes par points sérielles ou les imprimantes par lignes du type à impact. Ce ruban se caractérise par une réduction remarquable de la formation de taches graphiques et par une excellente propriété d'absorption de l'encre, malgré l'utilisation d'une chaîne ayant un nombre extrêmement faible de torsions, comme décrit ci-dessus.
EP91906428A 1990-03-29 1991-03-27 Procede de fabrication d'un ruban encreur pour utilisation dans une cassette Expired - Lifetime EP0474884B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2083987A JPH0737167B2 (ja) 1990-03-29 1990-03-29 インパクトプリンタのインクリボン用基布およびその製造方法
JP83987/90 1990-03-29
PCT/JP1991/000403 WO1991014580A1 (fr) 1990-03-29 1991-03-27 Tissu de base pour ruban-encreur et production d'un tel tissu

Publications (3)

Publication Number Publication Date
EP0474884A1 true EP0474884A1 (fr) 1992-03-18
EP0474884A4 EP0474884A4 (en) 1993-07-07
EP0474884B1 EP0474884B1 (fr) 1997-08-27

Family

ID=13817891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91906428A Expired - Lifetime EP0474884B1 (fr) 1990-03-29 1991-03-27 Procede de fabrication d'un ruban encreur pour utilisation dans une cassette

Country Status (6)

Country Link
US (1) US5173360A (fr)
EP (1) EP0474884B1 (fr)
JP (1) JPH0737167B2 (fr)
KR (1) KR920700929A (fr)
CA (1) CA2051381A1 (fr)
WO (1) WO1991014580A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679526A4 (fr) * 1993-11-10 1996-02-28 Toray Industries Textile de base de ruban encreur et son procede de realisation.

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40362E1 (en) 1987-04-23 2008-06-10 Polymer Group, Inc. Apparatus and method for hydroenhancing fabric
US5632072A (en) 1988-04-14 1997-05-27 International Paper Company Method for hydropatterning napped fabric
US5737813A (en) 1988-04-14 1998-04-14 International Paper Company Method and apparatus for striped patterning of dyed fabric by hydrojet treatment
JPH0692002A (ja) * 1992-09-10 1994-04-05 Toray Ind Inc インクリボン用基布
US5806155A (en) * 1995-06-07 1998-09-15 International Paper Company Apparatus and method for hydraulic finishing of continuous filament fabrics
US5870807A (en) * 1995-11-17 1999-02-16 Bba Nonwovens Simpsonville, Inc. Uniformity and product improvement in lyocell garments with hydraulic fluid treatment
US6442809B1 (en) 1997-12-05 2002-09-03 Polymer Group, Inc. Fabric hydroenhancement method and equipment for improved efficiency
EP1694893A4 (fr) * 2003-12-15 2007-11-28 Univ North Carolina State Amelioration des caracteristiques physiques et mecaniques de tissus par hydroliage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59164177A (ja) * 1983-03-09 1984-09-17 Takamatsu Yushi Kk インクリボン
JP2576084B2 (ja) * 1984-07-13 1997-01-29 東レ株式会社 インクリボンの製造方法
JPS6347186A (ja) * 1986-08-18 1988-02-27 Asahi Chem Ind Co Ltd 多色インクリボン用基布
JPH0311912A (ja) * 1989-06-06 1991-01-21 Naka Tech Lab フロアパネル開口部の塞ぎ板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9114580A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0679526A4 (fr) * 1993-11-10 1996-02-28 Toray Industries Textile de base de ruban encreur et son procede de realisation.

Also Published As

Publication number Publication date
JPH03281277A (ja) 1991-12-11
CA2051381A1 (fr) 1991-09-30
EP0474884A4 (en) 1993-07-07
US5173360A (en) 1992-12-22
KR920700929A (ko) 1992-08-10
JPH0737167B2 (ja) 1995-04-26
EP0474884B1 (fr) 1997-08-27
WO1991014580A1 (fr) 1991-10-03

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